CN105243997B - A kind of display device, light conversion device and display system - Google Patents
A kind of display device, light conversion device and display system Download PDFInfo
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- CN105243997B CN105243997B CN201510629710.5A CN201510629710A CN105243997B CN 105243997 B CN105243997 B CN 105243997B CN 201510629710 A CN201510629710 A CN 201510629710A CN 105243997 B CN105243997 B CN 105243997B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2358/00—Arrangements for display data security
Abstract
The present invention provides a kind of display device, light conversion device and display systems, are related to field of display technology, and it is too simple which improves the encryption of existing peep-proof display device, are easy to the problem of being cracked.A kind of display device, the display device include: light emitting module, capable of emitting at least two non-visible light of light emitting module, and the wavelength of non-visible light not of the same race is different；Control module, the control module adjust timing for controlling the light emitting module with wavelength, and alternating issues at least two non-visible light, and issues synchronization signal to light conversion device, and the synchronization signal is for reflecting the wavelength adjustment timing.The present invention is suitable for display device, light conversion device and the production including the display device and light conversion device display system.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of display devices, light conversion device and display system.
Background technique
With the continuous improvement of display technology, portable display apparatus is continued to bring out.Currently there are a variety of styles
Portable display apparatus, user can use display device whenever and wherever possible.However, display device is used in public, letter
Breath is easy to be peeped by others.
The display device with peep-proof function mostly uses it will be seen that light backlight is changed into non-visible light backlight, use at present
Family, which needs to wear special optical device, can just see display picture, to play the role of peep-proof.But it is limited to related optical and sets
Standby technical restriction, non-visible light backlight generally use the non-visible light of fixed band or the non-visible light of single wavelength to make
For backlight, correspondingly, the non-visible light that the display device issues also is the non-visible light or single wavelength of fixed band
Non-visible light.In this way, can be cracked by the wavelength for measuring the non-visible light that the display device issues at any time.This
Kind cipher mode is too simple, is easy to crack.
Summary of the invention
The embodiment of the present invention provides a kind of display device, light conversion device and display system, which improves
Existing peep-proof display device encryption is too simple, is easy to the problem of being cracked.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
On the one hand, a kind of display device is provided, which includes:
The wavelength of light emitting module, capable of emitting at least two non-visible light of light emitting module, non-visible light not of the same race is different；
Control module, the control module adjusts timing for controlling the light emitting module with wavelength, alternately described in sending
At least two non-visible lights, and synchronization signal is issued to light conversion device, the synchronization signal is for reflecting the wavelength adjustment
Timing.
Optionally, the light emitting module includes at least two non-visible light sources, wherein non-visible light sources not of the same race can
The wavelength of the non-visible light of sending is different；
The control module is alternately shone for controlling at least two non-visible light sources with wavelength adjustment timing.
Optionally, the light emitting module includes the first non-visible light sources and the second non-visible light sources；
The control module is for controlling first non-visible light sources and second non-visible light sources, with wavelength
It adjusts timing and alternately issues two kinds of non-visible lights.
Optionally, first non-visible light sources are infrared light supply, and second non-visible light sources are ultraviolet source.
Optionally, the light emitting module includes:
Visible light source；
Wavelength conversion unit, the wavelength conversion unit are non-for the visible light that the visible light source issues to be converted into
Visible light；
The control module is specifically used for controlling the wavelength conversion unit with wavelength adjustment timing, and the visible light is handed over
For being converted at least two non-visible lights.
Optionally, the wavelength conversion unit is nonlinear crystal or semiconductor optical amplifier.
The embodiment provides a kind of display device, the display device by control module make light emitting module with
Wavelength adjusts timing, alternately issues at least two non-visible lights, and issue synchronization signal to light conversion device.In this way, the display
The wavelength for the non-visible light that device issues constantly changes according to wavelength adjustment timing, only obtains the wavelength of a certain moment non-visible light
It is the case where can not determining other moment, this kind of cipher mode is complex, is not easy to crack.
On the other hand, a kind of light conversion device is provided, which includes:
First receiving module, it is non-visible that first receiving module is used for receiving and displaying device alternately issues at least two
Light；
Second receiving module, second receiving module is used to receive the synchronization signal that the display device issues, described
Synchronization signal is used to reflect the wavelength adjustment timing of the display device；
Control module, the control module are used for according to the synchronization signal, and with the wavelength, adjustment timing general is described extremely
Few two kinds of non-visible lights, which synchronize, is converted to visible light, and by the visible light output.
Optionally, the control module includes:
First control unit, the first control unit are used for according to the synchronization signal, and the wavelength is adjusted timing
A kind of non-visible light that middle current time receives is transmitted to a wavelength with input light path corresponding with this kind of non-visible light and turns
Change unit；Non-visible light not of the same race corresponds to different input light paths；
At least two wavelength conversion units, each wavelength conversion unit are converted into visible for a kind of non-visible light
Light.
Optionally, the control module further include:
Second control unit, second control unit are used for according to the synchronization signal, by the wavelength conversion unit
With the corresponding output light path output of the visible light, the visible light that non-visible light not of the same race is converted to corresponds to the visible light of sending
Different output light paths.
Optionally, the first control unit includes:
First choice subelement, the first choice subelement are used to be adjusted the wavelength according to the synchronization signal
A kind of non-visible light that current time receives in timing is transmitted to the first optical path and changes subelement；
First optical path changes subelement, and first optical path changes subelement for receiving the first choice subelement hair
The non-visible light is simultaneously transmitted to a wavelength conversion unit by non-visible light out.
Optionally, it is reflecting mirror that the first choice subelement and first optical path, which change subelement,.
Optionally, second control unit includes:
Second optical path changes subelement, and second optical path changes what subelement was used to issue the wavelength conversion unit
It can be seen that light output to second selection subelement；
Second selection subelement, the second selection subelement are used for according to the synchronization signal, by second optical path
Change the visible light output that subelement issues.
Optionally, it is reflecting mirror that the second selection subelement and second optical path, which change subelement,.
Optionally, the light conversion device is glasses.
The embodiment provides a kind of light conversion device, which passes through the first receiving module, second
Receiving module and control module, at least two non-visible lights that above-mentioned display device can be issued, which synchronize, is converted to visible light,
And it will be seen that light output.
In another aspect, providing a kind of display system, which includes above-mentioned display device and light conversion device.
The embodiment provides a kind of display system, which improves existing peep-proof display device encryption
It is too simple, it is easy to the problem of being cracked.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of display system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another display system provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of the control module of light conversion device in Fig. 2；
Fig. 4 is another structural schematic diagram of the control module of light conversion device in Fig. 2；
Fig. 5 is a kind of structural schematic diagram of first control unit in Fig. 2；
Fig. 6 is a kind of structural schematic diagram of the second control unit in Fig. 2；
Fig. 7 a is the light that wavelength adjusts that the infrared light that current time light conversion device receives in timing is converted into visible light
Road schematic diagram；
Fig. 7 b is the light that wavelength adjusts that the ultraviolet light that future time light conversion device receives in timing is converted into visible light
Road schematic diagram；
Fig. 8 a is the spectrogram for the infrared light that light conversion device receives and the spectrum that the infrared light is converted into visible light
Figure；
Fig. 8 b is the spectrogram for the ultraviolet light that light conversion device receives and the spectrum that the ultraviolet light is converted into visible light
Figure.
Appended drawing reference:
10- display device；20- light conversion device；1- light emitting module；The control module of 2- display device；3- first is received
Module；The second receiving module of 4-；The control module of 5- light conversion device；51- first control unit；511- first choice is single
Member；The first optical path of 512- changes subelement；52- wavelength conversion unit；The second control unit of 53-；The second optical path of 531- changes son
Unit；532- second selects subelement.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
The embodiment provides a kind of display devices, refering to what is shown in Fig. 1, the display device 10 includes:
The wavelength of light emitting module 1, capable of emitting at least two non-visible light of light emitting module 1, non-visible light not of the same race is different；
Control module 2, control module 2 adjust timing for controlling 1 piece of luminous mould with wavelength, it is non-alternately to issue at least two
Visible light, and synchronization signal is issued to light conversion device 20, synchronization signal is for reflecting that wavelength adjusts timing.
In above-mentioned display device, the embodiment of the present invention is by the non-visible light issued in different moments and these different moments
Wavelength a kind of light all the same of non-visible light be known as a kind of non-visible light.Exemplary, light emitting module is at t1, t2, t3 moment
Non-visible light L1, L2, L3 are issued respectively, if the wavelength of L1, L2, L3 are all the same, L1, L2, L3 are a kind of non-visible light.
In addition, the embodiment of the present invention for wave-length coverage included by a kind of non-visible light without limitation.It is exemplary, it is a kind of
Non-visible light only can include the electromagnetic wave of single wavelength, for example, it may be including the electromagnetic wave that wavelength is 0.8 μm；It can be with
It is the electromagnetic wave with a wave band, for example, it may be including all electromagnetic waves in 0.2-0.3 μ m.It is obtained by spectrogram
Know, it is seen that the wavelength of light is 0.38-0.78 μm, and light wave of the wavelength except this range is non-visible light, for example, wavelength exists
Infrared light between 0.78-1000 μm, ultraviolet light of the wavelength between 0.2-0.38 μm.It is non-visible due to other wave-length coverages
Light will cause larger damage to human body, and the wavelength of above-mentioned non-visible light can be arranged in the wave-length coverage of infrared light or ultraviolet light
It is interior.
In above-mentioned display device, the wavelength difference of non-visible light not of the same race refers to: the wavelength of non-visible light not of the same race is complete
Difference, alternatively, the wavelength components of non-visible light not of the same race are different.For example, the first non-visible light includes in 5-10 μ m
All electromagnetic waves, second of non-visible light include all electromagnetic waves in 20-30 μ m, then the first non-visible light and second
The wavelength of kind non-visible light is entirely different, belongs to the former；For another example the first non-visible light includes all in 5-10 μ m
Electromagnetic wave, second of non-visible light include all electromagnetic waves in 8-30 μ m, the first non-visible light and second it is non-can
Light-exposed wavelength components are different, belong to the latter.
In above-mentioned display device, wavelength adjustment timing refers to that non-visible light issues the time and issues the corresponding relationship of wavelength；
It being illustrated so that display device alternately issues two kinds of non-visible lights as an example, display device issues a kind of non-visible light at the t1 moment,
Another non-visible light is issued at the t2 moment, so alternately, what wavelength adjusted timing reflection is exactly in each display device
It is corresponding which kind of non-visible light issued.Synchronization signal may include wavelength adjustment timing, can also include the wavelength letter of current time
Breath is determined with specific reference to the number of species for the non-visible light that display device alternately issues.Specifically, if display device alternately issues
Two kinds of non-visible lights, synchronization signal can only include that wavelength adjusts timing, and light conversion device can adjust timing according to the wavelength
Select a wavelength conversion unit that non-visible light is converted into visible light；If display device alternately issues three kinds of non-visible lights, together
Step signal may include wavelength adjustment timing and current wavelength information, light conversion device can be adjusted according to the wavelength timing and
Current wavelength information selects corresponding wavelength conversion unit that non-visible light is converted into visible light.
In above-mentioned display device, the source at least two non-visible lights that the embodiment of the present invention issues light emitting module is not
It limits, it is exemplary, non-visible light can directly be generated using the material for issuing non-visible light, can also be it will be seen that light passes through
Wavelength converter is converted into non-visible light.
In above-mentioned display device, the embodiment of the present invention replaces the number of species of the non-visible light issued not for display device
It limits, exemplary, display device can alternately issue two kinds of non-visible lights, can also alternately issue three kinds of non-visible lights etc.
Deng.The number of species for the non-visible light that display device alternately issues are more, and the encryption of the display device is higher, but the display
The structure of device and light conversion device is also more complicated.Based on this, it can choose display device and alternately issue two kinds of non-visible lights, with
Balance above-mentioned relation.The embodiment of the present invention and attached drawing are said so that display device alternately issues two kinds of non-visible lights as an example
It is bright.
In above-mentioned display device, control module can be integrated in single-chip microcontroller or FPGA (Field Programmable
Gate Array, field programmable gate array) etc. circuit unit in chips, can also be an individual circuit structure, this
Inventive embodiments are not construed as limiting the particular circuit configurations of control module, as long as meeting above-mentioned function.
The embodiment of the present invention is not construed as limiting the type of above-mentioned display device, which can be liquid crystal display
Device can also be OLED (Organic Light-Emitting Diode, Organic Light Emitting Diode) display device, here not
Make specific limit.
The embodiment provides a kind of display device, the display device by control module make light emitting module with
Wavelength adjusts timing, alternately issues at least two non-visible lights, and issue synchronization signal to light conversion device.In this way, the display
The wavelength for the non-visible light that device issues constantly changes according to wavelength adjustment timing, issues in different time not of the same race non-visible
Light, the wavelength for only obtaining a certain moment non-visible light are the case where can not determining other moment, this kind of cipher mode is complex,
It is not easy to crack.
Illustrate the source for the non-visible light that above-mentioned light emitting module issues below by two ways.
The first: light emitting module includes at least two non-visible light sources, wherein non-visible light sources not of the same race are capable of emitting
Non-visible light wavelength it is different；Control module is for controlling at least two non-visible light sources, with wavelength adjustment timing alternating
It shines.
What needs to be explained here is that the wavelength for the non-visible light that the embodiment of the present invention generates non-visible light sources and
The quantity of non-visible light sources is not construed as limiting.
This kind of mode can directly generate non-visible light, and realization is relatively simple, but can generate non-visible light at present
The selection type of limited material, non-visible light is limited.
Preferably, light emitting module includes the first non-visible light sources and the second non-visible light sources；Control module is for controlling
The first non-visible light sources and the second non-visible light sources are made, two kinds of non-visible lights are issued alternately with wavelength adjustment timing.In this way
Cost can be reduced, is easily achieved simultaneously.
It is further preferred that the first non-visible light sources are infrared light supply, the second non-visible light sources are ultraviolet source.This
The non-visible light that sample can be avoided its all band generates damage, such as X-ray, alpha ray etc. to human body, while improving encryption
Property.
Second: light emitting module includes: visible light source；Wavelength conversion unit, wavelength conversion unit is for it will be seen that light
The visible light that light source issues is converted into non-visible light；When control module is adjusted specifically for control wavelength conversion unit with wavelength
Sequence, it will be seen that light is alternately converted at least two non-visible lights.
This kind of mode will be seen that light is converted into non-visible light by wavelength conversion unit, select different wavelength convert lists
Member may be implemented it will be seen that light is converted into the non-visible light of different-waveband, and use is more flexible, but need additionally to turn using wavelength
Unit is changed, manufacture difficulty is increased.
The embodiment of the present invention is not construed as limiting the specific structure of wavelength conversion unit, and wavelength conversion unit can be utilization
Optical-electronic switch technology realizes the optical-electronic device of the wavelength convert function of optical signal.Optionally, wavelength conversion unit can be non-
Linear crystal or semiconductor optical amplifier.Wherein, semiconductor optical amplifier includes cross-gain saturation modulation type, cross-phase
Modulation type and four-wave mixing type wavelength shifter.
Embodiment two
The embodiment provides a kind of light conversion devices, refering to what is shown in Fig. 2, the light conversion device includes: first
Receiving module 3, at least two non-visible lights that the first receiving module 3 is alternately issued for receiving and displaying device；Second receives mould
Block 4, the second receiving module 4 are used for the synchronization signal that receiving and displaying device issues, and synchronization signal is used to reflect the wave of display device
Long adjustment timing；Control module 5, control module 5 is used for according to synchronization signal, non-visible by least two with wavelength adjustment timing
Phototiming is converted to visible light, and will be seen that light output.
It should be noted that the meaning of above-mentioned at least two non-visible light, wavelength adjustment timing is the same as example 1, this
In repeat no more.
The embodiment provides a kind of light conversion device, which passes through the first receiving module, second
Receiving module and control module, at least two non-visible lights that above-mentioned display device can be issued, which synchronize, is converted to visible light,
And it will be seen that light output.
Optionally, refering to what is shown in Fig. 3, above-mentioned control module 5 includes:
First control unit 51, first control unit 51 is used for according to synchronization signal, when wavelength is adjusted current in timing
Between a kind of non-visible light for receiving one wavelength conversion unit 52 is transmitted to input light path corresponding with this kind of non-visible light,
Non-visible light not of the same race corresponds to different input light paths；At least two wavelength conversion units 52, each wavelength conversion unit 52 are used
Visible light is converted into a kind of non-visible light.
What needs to be explained here is that the embodiment of the present invention is transferred to wavelength convert list for a kind of non-visible light received
Member input light path be not construed as limiting, specifically can according to the actual situation depending on.In addition, the embodiment of the present invention is for control module packet
The quantity of the wavelength conversion unit included is also not construed as limiting, and can specifically be determined according to the type of the non-visible light received.For example,
If control module receives two kinds of non-visible lights, then, control module may include two wavelength conversion units；If control module
Three kinds of non-visible lights are received, then, control module may include three wavelength conversion units.
Explanation is needed further exist for, the embodiment of the present invention is not construed as limiting the specific structure of first control unit, the
One control unit can be individual optical element, such as reflecting mirror；Certainly other structures be can also be.Above structure is easy real
It is existing, it is easy to make.
It is further alternative, refering to what is shown in Fig. 4, above-mentioned control module 5 further include:
Second control unit 53, the second control unit 53 are used for according to synchronization signal, by wavelength conversion unit issue can
It is light-exposed with the visible light corresponding output light path output, the visible light that non-visible light not of the same race is converted to corresponds to different defeated
Optical path out.
What needs to be explained here is that the output light path for the visible light that the embodiment of the present invention issues wavelength conversion unit is not
It limits, which can be from wavelength conversion unit and directly export, and can also be and is exported by the second control unit.It is preferred that
The latter, by the second control unit control visible light output light path, can more flexible design above structure, in favor of system
Work and user experience.
Optionally, refering to what is shown in Fig. 5, first control unit 51 includes:
First choice subelement 511, first choice subelement 511 are used to be adjusted wavelength in timing according to synchronization signal
A kind of non-visible light that current time receives is transmitted to the first optical path and changes subelement 512；First optical path changes subelement
512, the first optical path changes subelement 512 and is used to receive the non-visible light of the sending of first choice subelement 511 and by non-visible light
It is transmitted to a wavelength conversion unit 52.
What needs to be explained here is that the embodiment of the present invention changes subelement for first choice subelement and the first optical path
Specific structure is not construed as limiting.Preferably, it is reflecting mirror that first choice subelement and the first optical path, which change subelement,.
Optionally, refering to what is shown in Fig. 6, the second control unit 53 includes:
Second optical path changes subelement 531, which changes subelement 531 for issuing wavelength conversion unit 52
Visible light output to second selection subelement 532；Second selection subelement 532, the second selection subelement 532 are used for basis
Synchronization signal, the visible light output that the second optical path change subelement 531 is issued.
What needs to be explained here is that the embodiment of the present invention changes subelement for the second selection subelement and the second optical path
Specific structure is not construed as limiting.Preferably, it is reflecting mirror that the second selection subelement and the second optical path, which change subelement,.
Preferably, above-mentioned light conversion device is glasses, in favor of user's wearing.
For light conversion device, it is described in detail how the light conversion device will receive shown in Fig. 7 a and Fig. 7 b below
Two kinds of non-visible lights be converted into visible light and export.The embodiment of the present invention is only carried out for receiving two kinds of non-visible lights
Explanation.
With reference to shown in Fig. 7 a, wavelength is adjusted current time in timing and connect by first choice subelement 511 according to synchronization signal
The infrared light reflection as shown in Figure 8 a received changes on subelement 512 to the first optical path, then changes son list by the first optical path
Member 512 is reflected into wavelength conversion unit 52, and wavelength conversion unit 52 here can convert infrared light shown in Fig. 8 a
At visible light shown in Fig. 8 a, then, the visible light that wavelength conversion unit 52 issues changes subelement 531 instead by the second optical path
It is mapped to the second selection subelement 532, the second selection subelement 532 sends out the second optical path change subelement 531 according to synchronization signal
Visible light output out.What needs to be explained here is that first choice subelement 511 and the second selection subelement 532 can roots
According to synchronization signal, the angle of synchronous adjustment reflecting mirror, so that light is according to optic path shown in Fig. 7 a.
With reference to shown in Fig. 7 b, wavelength is adjusted future time in timing and connect by first choice subelement 511 according to synchronization signal
The ultraviolet light as shown in Figure 8 b received is reflected into the first optical path and changes on subelement 512, then changes son list by the first optical path
Member 512 is reflected into wavelength conversion unit 52, and wavelength conversion unit 52 here can convert ultraviolet light shown in Fig. 8 b
At visible light shown in Fig. 8 b, then, the visible light that wavelength conversion unit 52 issues changes subelement 531 instead by the second optical path
It is mapped to the second selection subelement 532, the second selection subelement 532 sends out the second optical path change subelement 531 according to synchronization signal
Visible light output out.What needs to be explained here is that first choice subelement 511 and the second selection subelement 532 can roots
According to synchronization signal, the angle of synchronous adjustment reflecting mirror, so that light is according to optic path shown in Fig. 7 b.
Embodiment three
The embodiment provides a kind of display system, which includes the display device that embodiment one provides
The light conversion device provided with embodiment two.It is too simple that the display system improves the encryption of existing peep-proof display device, is easy to
The problem of being cracked.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (13)
1. a kind of anti-peeping display device, which is characterized in that the display device includes:
The wavelength of light emitting module, capable of emitting at least two non-visible light of light emitting module, non-visible light not of the same race is different；
Control module, the control module adjust timing for controlling the light emitting module with wavelength, and alternately sending is described at least
Two kinds of non-visible lights, and synchronization signal is issued to light conversion device, the synchronization signal is used to reflect the wavelength adjustment timing,
The wavelength for the non-visible light that the display device issues constantly changes according to wavelength adjustment timing, issues in different time not of the same race
Non-visible light, thus make the wavelength for only obtaining a certain moment non-visible light be can not determine in addition to a certain moment when
The wavelength of the non-visible light at quarter.
2. display device according to claim 1, which is characterized in that the light emitting module includes at least two non-visible lights
Light source, wherein the wavelength of the capable of emitting non-visible light of non-visible light sources not of the same race is different；
The control module is alternately shone for controlling at least two non-visible light sources with wavelength adjustment timing.
3. display device according to claim 2, which is characterized in that the light emitting module includes the first non-visible light sources
With the second non-visible light sources；
The control module is adjusted for controlling first non-visible light sources and second non-visible light sources with wavelength
Timing alternately issues two kinds of non-visible lights.
4. display device according to claim 3, which is characterized in that first non-visible light sources are infrared light supply,
Second non-visible light sources are ultraviolet source.
5. display device according to claim 1, which is characterized in that the light emitting module includes:
Visible light source；
Wavelength conversion unit, the wavelength conversion unit are non-visible for the visible light that the visible light source issues to be converted into
Light；
The control module is specifically used for controlling the wavelength conversion unit with wavelength adjustment timing, and the visible light is alternately turned
Change at least two non-visible lights into.
6. display device according to claim 5, which is characterized in that the wavelength conversion unit be nonlinear crystal or
Semiconductor optical amplifier.
7. a kind of light conversion device characterized by comprising
First receiving module, at least two non-visible lights that first receiving module is alternately issued for receiving and displaying device；
Second receiving module, second receiving module are used to receive the synchronization signal that the display device issues, the synchronization
Signal is used to reflect the wavelength adjustment timing of the display device；
Control module, the control module is used for according to the synchronization signal, with wavelength adjustment timing at least two by described in
Kind of non-visible light, which synchronizes, is converted to visible light, and by the visible light output；
The control module includes:
First control unit, the first control unit are used for according to the synchronization signal, by the wavelength adjust in timing when
A kind of non-visible light that the preceding time receives is transmitted to a wavelength convert list with input light path corresponding with this kind of non-visible light
Member；Non-visible light not of the same race corresponds to different input light paths；
At least two wavelength conversion units, each wavelength conversion unit are converted into visible light for a kind of non-visible light；
The first control unit includes:
First choice subelement, the first choice subelement are used for according to the synchronization signal, and the wavelength is adjusted timing
A kind of non-visible light that middle current time receives is transmitted to the first optical path and changes subelement；
First optical path changes subelement, and first optical path changes subelement and is used to receive what the first choice subelement issued
The non-visible light is simultaneously transmitted to a wavelength conversion unit by non-visible light.
8. device according to claim 7, which is characterized in that the control module further include:
Second control unit, second control unit are used to be issued the wavelength conversion unit according to the synchronization signal
Visible light with the visible light corresponding output light path output, the visible light that non-visible light not of the same race is converted to corresponds to difference
Output light path.
9. device according to claim 7, which is characterized in that the first choice subelement and first optical path change
Subelement is reflecting mirror.
10. device according to claim 8, which is characterized in that second control unit includes:
Second optical path changes subelement, and it is visible for issuing the wavelength conversion unit that second optical path changes subelement
Light output to second selection subelement；
Second selection subelement, the second selection subelement are used to be changed second optical path according to the synchronization signal
The visible light output that subelement issues.
11. device according to claim 10, which is characterized in that the second selection subelement and second optical path change
Varitron unit is reflecting mirror.
12. device according to claim 7, which is characterized in that the light conversion device is glasses.
13. a kind of display system, which is characterized in that the display system includes described in any one of claims 1-6 anti-peeping
Display device and the described in any item light conversion devices of claim 7-12.
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| CN201510629710.5A CN105243997B (en) | 2015-09-28 | 2015-09-28 | A kind of display device, light conversion device and display system |
| US15/189,701 US10013925B2 (en) | 2015-09-28 | 2016-06-22 | Display device, light converting device and display system |
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| CN106019712A (en) * | 2016-07-28 | 2016-10-12 | 京东方科技集团股份有限公司 | Anti-peeping display device and display system |
| CN107219676A (en) | 2017-08-03 | 2017-09-29 | 京东方科技集团股份有限公司 | Color membrane substrates, display panel, backlight module, display device and display system |
| CN112180627B (en) * | 2019-07-05 | 2024-02-02 | 中强光电股份有限公司 | Display device and display control method |
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| US10013925B2 (en) | 2018-07-03 |
| US20170094757A1 (en) | 2017-03-30 |
| CN105243997A (en) | 2016-01-13 |
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